Improved mode of extracting essences



J; C. WALKER. MODE OF EXTRAGTING ESSENCES. No. 67,824. Patented Aug. 13, 1867.

JAMES c. WALKER, L or WAco' V-ILDAGE, 'rnxssp- I Letters Patent Nab 7,824, dated Atqg ust 13, 1867.

IMPROVED MODE 01 BXTR A'GTING ESSEllGBS.

To ALL wnou Ir-M Y CONCERN:-

Be it known that I, JAMES C. WALKER, of Waco Village, inthe county of McLennan, and State of 'lexns, have invented a new and useful Improved Apparatus for Extracting Essences; and I do hereby declare the following to be a. full, clear, and exact description of the same, referencebeing had to the accompanying drnw- 'ing, forming part of this specification, and in which-'- I Ilhe druwing showsa vertical elevation of 'my improved apparatus, some of the interior portions being shown as if the wall nearthe spectator were removed forthe purpose; I V I I In this invention the extrnct is made under pressure and bottled up, the whole processtak-ing place in an I air-tight apparatus, by which all the aroma is saved. This npporntus may be-used-for makingany extract, for whatever purpose used. It will be foun d especially valuable, however," for extracting the volatile essences, in which it is very important that no part of the essential oils or juices should-be lost, whether vaporized ,by the bent, of-the process or not. In no invention previous to-mine has this been attained; but they haveul'l failed to save alnrge part of the strength of the extract by permitting the escape of the volatile'parts of the product of the process. I I

In order that others skilled in the'vamlrto which my invention appertnins may be enabled to make and use the same, I will proceed to describe it in detail. I i

In the drawings, A represents the furnace, which, in apparatus for extracting delicate and highly volatile essences, may be, as shown in the drawings, a simple lamp 'of any form. B isthehoiler, placed ovcr the 'lal np or 'fnrnacc, and provided with a tube, a, which passes through it from bottom to top, as'a conductor of the heated gnses and smoke of the fire beneath it, and another tube 6, connecting its interior with the chamber G, in which is placed the material from which the essence is to be extracted. The tube 6 runs'nearly to the bottom of the chamber G, within which it is perforated with olurge numher of minute holes, 0 c c. The bottom 0 of the ehs'inber'ps also perforated. Beneath the chamber is a pipe, D, made at its upper end funnel shaped, .so as to fit closely to the bottom 0, and at its" lower and extending n short distance below'the bottom of a cylinder o rwater-tanl, E, which surrounds and encloses thechamber O and upper'part ofthe pipe D, A stop-cock may be inserted in the pipe below the tank E, ifdesire'dl I F F are legs which support the various parts of the apps.

ratus.- R is a reflector, placed-around or beneath the lainp to throw all its heat towards the boiler.

The operation of the above-described a'pphrutusis as follows; I place the substance from which the extract is to be made in the chamber C, and connect it, as shown in the druwing,'with the boiler 13, which is nearly full I of boiling'water; The steam passing over from the boiler Bentersthe chamber 0, through the apertures c c c,

and is forced into the midst of. the mass in the chamber 0, thoroughly permeating every part of it, and extracting the essences fromit, which percolate through theperforotsd bottom 0' and drop to the bottom of the tube D. At the lower extremity g of the tube D, I ottac-h a bottle, G, to receive the extract thus made. The bottle may be firmly fixed by a screw-thread or otherwise-t0 the bottom of pipe D, 'and the point of junction must be mad-e 'aintight. By this means the steam will be confined withina steam-tight apparatus, consisting of bottle- G, pipe D, chamber C, pipe 6, and boilerB, and the substance from which the essence is to be earn-acted will,

,b act'ed on under any degree of pressure that .the operator mayrequire, a common safety-valve being pro ided at any part of-tho apparatus to' regulate the pressure of the steam and prevent explosion. The tank E isifo be filled to any required degree with cold water,- the-action of which will be to condens e whatever steam may pass through into the pipe D; The substance having once been put through this process, and its essential elements having been extracted and conveyed to the bottle G, in company with the water of condensation in the pipe D and chamber G,t he water may be emptied from the boiler B, and the contents of the bottleor receiverG may be substituted inits place, and distilled to any required degree of purity and strength. The process may be continued till the extract-isultimately reduced to a solid, if desired, No aperture is shownin the drawings for the admission ofjthe wnter, & /c., into thc'boilor B, but an aperturof anyfoi'm may be within itstcp for the purpose, andcoverecl with, lidjor valve of the proper shape, with any kind of fastening'tchold it in, place during the process; or the'pipeb may be screwed into the top of the boilcr B, so as to be detachable. and may be taken on and the winter, 85s., poured through the aperture thus lei v Having thus described my invention, what I claim as'n ew, and desire tn sec'ure by Letters Patent, is-

1. The apparatus ahot e described, consistingof the furnace A, boiler B,-hnving tube a, tube b,' with perforated extremity, chamber 0, with perforated bottom, pipe D, and surrounding tank E, all combined and arranged substantially as and for the purpose specified.

2. The detaehable'receiver G; fastened by the air-tight joint 9 to the tube D, and acting in combination with the parts above-described,substantially as and for the purpose specified,

To the above specification of my improvement I have signed my hand this 29th day of June, 1867.

i JAS. C(WALKER. i Witnesses:

CHAS. ApPmnr, 'SOLON C. Kmaoir. 

